Home / 455,371.16-628,816.65-283,584.11

Finding the Fourth Proportional to 455,371.16, 628,816.65 and 283,584.11

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Solution

The fourth proportional to 455,371.16, 628,816.65 and 283,584.11 is: 391,597.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,371.16 : 628,816.65 = 283,584.11 : x
  2. Step 2: Convert to fraction form
    455,371.16/628,816.65 = 283,584.11/x
  3. Step 3: Cross multiply
    455,371.16x = 628,816.65 × 283,584.11
  4. Step 4: Simplify right side
    455,371.16x = 178,322,410,043.43
  5. Step 5: Solve for x
    x = 178,322,410,043.43/455,371.16
  6. Step 6: Final answer
    x = 391,597.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.